55706831969 has 2 divisors, whose sum is σ = 55706831970. Its totient is φ = 55706831968.

The previous prime is 55706831911. The next prime is 55706832001. The reversal of 55706831969 is 96913860755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42061087744 + 13645744225 = 205088^2 + 116815^2 .

It is a cyclic number.

It is not a de Polignac number, because 55706831969 - 2¹² = 55706827873 is a prime.

It is a super-2 number, since 2×55706831969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55706831269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27853415984 + 27853415985.

It is an arithmetic number, because the mean of its divisors is an integer number (27853415985).

Almost surely, 2^55706831969 is an apocalyptic number.

It is an amenable number.

55706831969 is a deficient number, since it is larger than the sum of its proper divisors (1).

55706831969 is an equidigital number, since it uses as much as digits as its factorization.

55706831969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12247200, while the sum is 59.

The spelling of 55706831969 in words is "fifty-five billion, seven hundred six million, eight hundred thirty-one thousand, nine hundred sixty-nine".